After all of his concerts were canceled because of the COVID-19 pandemic, the singer-songwriter and former contestant on season two of "The Voice" decided to release his own version of The Knack's 1979 hit single "My Sharona," renamed "My Corona," on March 15. Since it was uploaded, the video has garnered more than 4.2 million views on YouTube.

"I was just sitting here in my house and I was really frustrated about everything that's going on, so I did this very silly 'My Corona' cover in two hours in my bathroom," he told Insider. "It immediately went viral."

"I've never experienced anything like it in my entire life," Mann said.

After seeing the response to "My Corona," Mann decided to take on Madonna's "Vogue," which he renamed "Stay Home Vogue"

"It was so much fun to do and figure out a way to dance your way through this quarantine," he said.

The video, which also features an adorable cameo from Mann's 2-year-old son Hugo, has over 1.7 million views on YouTube. It starts with Mann singing, "Look around everywhere you turn is COVID, it's everywhere that you go, just look around," and continues on from there.

Mann noticed he had gained over 50,000 new YouTube subscribers after posting the "Vogue" cover, so he decided to take on "Hello" by Adele next

"Fans that know my music from the past know that I sing ballads a lot," Mann told Insider. "I had the idea to do 'Hello' because it is so melodramatic and serious."

"I thought it would be hilarious to do with personal lyrics about what we are feeling in my house, about what it's like to have not been outside, not have seen your friends, and not eat out. It's about all the little sacrifices we've made that have made a difference," he said.

Mann said it only took him an hour to rewrite the lyrics, which includes funny lines like "Hello, it's me. I'm in California dreaming about going out to eat. Just a burger with cheese, or a shaken margarita, baby back ribs from Chili's."

Mann started off by changing the line "Hello from the other side," to "Hello from the inside," and the rest of the new lyrics followed.

"I love sarcasm, and honestly, I've never been more unfiltered in my life. I didn't censor myself at all and all of a sudden everyone is connecting to what I'm saying," Mann said. "For once I said exactly how I felt, and I think that's kind of incredible."

"I think Adele would get a kick out of it because she has a good sense of humor," he added.

The "Hello" parody video, which was uploaded on March 26, has turned out to be Mann's most popular video to date, with more than 6 million views at the time of writing.

He told Insider that he takes the opportunity when his son is napping to record the songs, and his wife helps him record the videos.

"I'm so completely blown away and caught off guard by the response to these videos because it's all been about me trying to talk honestly about how I'm feeling at this particular moment in the crisis that we are all experiencing," he said. "I'm really thankful and happy that people are connecting with what I'm saying."

Aside from how many people have watched it, Mann admitted he's most surprised by how nice people are being.

"The thing that I think is most important and that I am honestly shocked by is that there are thousands of comments and they are almost all positive, and I think in this day and age that's unheard of," he said. "There aren't any trolls and haters. For some reason, the entire world is on the same page about how we feel. This is unanimously connecting everyone and that's so incredible to me."

Mann took a break from the funny videos to release a version of Alanis Morissette's "Thank You" dedicated to all the frontline workers that are helping in the fight against COVID-19

"I've rewritten the lyrics to highlight everybody. I also crowdsourced videos of people thanking their unsung heroes, and incorporated all of it into this one montage video," he said." It's really beautiful, really fun, and really cool."

"Hopefully it gets shared as much as my funny ones because everybody deserves to say 'thank you' to somebody who's out there working so hard for us," Mann added.

Mann released four covers in just three weeks, but he admitted that he is going to slow down and only release one a week from now on.

"My wife has been totally holding down the fort with our son because I've been locked away in our bathroom and in my room working on these. I'm going to take some time off and enjoy life inside," he said.